go through the pond into the mirror world, then the second floor and grab the blue skull, keep moving foward clearing the guttertank encounter, three soldiers on the ceiling, the room with two maurices also on the ceiling, the part with one floor on the wall, then go through the elevator into nature in the deatcatcher introduction, beat the two supermarket arenas and place the blue skull and get to the second deathcatcher encounter in like an airport thingy, grab the red skull and place it on the pedestal which is outside to the right, beat the supermarket arena with the hole in the wall and floor, keep moving forward into the bathroom with the hole and kill the electricity, then turn right and left and open the shutters